#include<bits/stdc++.h>
using namespace std;
#define int long long
signed main() {
//	system("start https://www.lanqiao.cn/problems/4765/learning/");

	string s;
	cin >> s;

	for (int i = 0; i < s.size(); i++) {
		if (i % 2) {
			s[i] = s[i] == 'a' ? 'b' : 'a';
		} else {
			s[i] = s[i] == 'z' ? 'y' : 'z';
		}
	}
	cout << s;

	return 0;
}
